1354564749 has 4 divisors (see below), whose sum is σ = 1806086336. Its totient is φ = 903043164.

The previous prime is 1354564733. The next prime is 1354564753. The reversal of 1354564749 is 9474654531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9474654531 = 3 ⋅3158218177.

It is not a de Polignac number, because 1354564749 - 2⁴ = 1354564733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1354564698 and 1354564707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1354564049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225760789 + ... + 225760794.

It is an arithmetic number, because the mean of its divisors is an integer number (451521584).

Almost surely, 2^1354564749 is an apocalyptic number.

It is an amenable number.

1354564749 is a deficient number, since it is larger than the sum of its proper divisors (451521587).

1354564749 is an equidigital number, since it uses as much as digits as its factorization.

1354564749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451521586.

The product of its digits is 1814400, while the sum is 48.

The square root of 1354564749 is about 36804.4120860529. The cubic root of 1354564749 is about 1106.4537281529.

The spelling of 1354564749 in words is "one billion, three hundred fifty-four million, five hundred sixty-four thousand, seven hundred forty-nine".